Ecological Footprint

Only available on StudyMode
  • Download(s) : 237
  • Published : March 13, 2012
Open Document
Text Preview
This Chapter is from the volume: de Sherbiniin, A., A. Rahman, A. Barbieri, J.C. Fotso, and Y. Zhu (eds.). 2009. Urban Population-Environment Dynamics in the Developing World: Case Studies and Lessons Learned. Paris: Committee for International Cooperation in National Research in Demography (CICRED) (316 pages). Available at http://www.populationenvironmentresearch.org/workshops.jsp#W2007

AN ASSESSMENT OF URBAN ENVIRONMENTAL ISSUES USING REMOTE SENSING AND GIS TECHNIQUES: AN INTEGRATED APPROACH. A CASE STUDY: DELHI, INDIA Atiqur RAHMAN
Department of Geography, Faculty of Natural Sciences, Jamia Millia Islamia University, New Delhi, India

Maik NETZBAND
Centre for Environmental Research, Department Urban Ecology, Environmental Planning and Transport, Leipzig, Germany

Alka SINGH Javed MALLICK
Department of Geography, Faculty of Natural Sciences, Jamia Millia Islamia University, New Delhi, India

Abstract
India’s cities are growing rapidly, resulting in a wide variety of environmental stresses. In this paper an integrated approach using satellite data and GIS techniques in conjunction with socio-economic data is used to assess urban environmental issues in Delhi. Delhi’s current population of 13.8 million is growing rapidly, and is projected to reach 22.4 million by 2021. The issues addressed in this paper include: changes in land use/land cover

182

ATIQUR RAHMAN ET AL.

(1992-2004); changes in surface temperatures for 2001 and 2005; solid waste generation, collection and its management; and industrial pollution (i.e. air, waste water and noise). The results show that Delhi is developing very rapidly mainly in the west, south-west and eastern sides. The study shows that a 122% increase in highly dense residential area was recorded during last decade in Delhi. There was a reduction (17%) in agricultural land because of urban expansion in the fringe areas. The pollution load has increased in terms of air, water, noise, and solid waste generation and disposal, etc. The thermal infrared (TIR) satellite data of Delhi clearly shows that there was a 1-2°C increase in surface temperature in just 4 years that is a subject matter of concern. India.

Key words: Population, development and environment; Geo-spatial approach; Delhi;

1. Introduction There is an unequal urban growth, which is taking place all over the world, but the rate of urbanization is very fast in the developing countries, especially in Asia. In 1800 A.D., only 3% of the world’s population lived in urban centres, but this figure reached to 14% in 1900 and in 2000, about 47% (2.8 billion) people were living in urban areas. India no longer lives in villages and 79 million people were living in urban areas in 1961, but it went up to 285 million in 2001. In India and China alone, there are more than 170 urban areas with populations of over 750,000 inhabitants (United Nations Population Division, 2001). Statistics show that India’s urban population is the second largest in the world after China, and is higher than the total urban population of all countries put together barring China, USA and Russia. In 1991, there were 23 metropolitan cities in India, which increased to 35 in 2001 (Census of India, 1991 and 2001). The prominent ones are Delhi (13.78 million), Mumbai (13.22 million), and Chennai (6.42 million). There is a mass migration of people from rural areas to cities and also from smaller to larger cities and then to metropolitan centres like Delhi, Bombay, Kolkata, Bangalore, and Chennai. The major cause is the search for better employment opportunities in these urban centres in comparison to neighbouring States. As urban population increases, the demand of land for various urban activities also increases. The process of urbanization in India gained momentum with the start of the industrial revolution in the 1970s followed by globalization in the

AN ASSESSMENT OF URBAN ENVIRONMENTAL ISSUES…

183

1990s. Forests were cleared,...
tracking img